HEAT-TRANSFER FROM A FINNED SURFACE TO BOILING LIQUID-MIXTURES

A numerical study of heat transfer to acetone/isopropanol mixtures boi ling on a finned surface was performed using a finite-difference techn ique. Heat transfer surface temperature, liquid composition, fin geome try, and fin thermal conductivity have been varied to investigate the influence of these parameters on fin-average heat transfer coefficient s and on the amount of heat transferred by the finned surface The resu lts indicate that the significant degradation of heat transfer that is found for boiling of mixtures on plain surfaces can be reduced by usi ng finned heat transfer surfaces.